Square drain cover riser



FIG. 1 is a top perspective view of the square drain cover riser according to the new design.

FIG. 2 is a top view of the thereof; and,

FIG. 3 is a side view thereof.

The broken lines are shown for illustrative purposes only and form no part of the claimed design. 

I claim the ornamental design for a square drain cover riser, as shown and described. 